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Innovative high-performance hybrid yarns made from recycled carbon fibers for lightweight structures / Anwar Abdkader in CHEMICAL FIBERS INTERNATIONAL, Vol. 67, N° 3 (09/2017)
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Titre : Innovative high-performance hybrid yarns made from recycled carbon fibers for lightweight structures Type de document : texte imprimé Auteurs : Anwar Abdkader, Auteur ; Martin Hengstermann, Auteur ; Chokri Cherif, Auteur Année de publication : 2017 Article en page(s) : p. 153-155 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Composites à fibres de carbone
Composites à fibres de carbone -- Propriétés mécaniques
Essais dynamiques
Fibres à orientation unidirectionnelle
Fibres de carbone -- Recyclage
Fibres textiles -- Propriétés mécaniques
Fibres textiles synthétiques
Matériaux -- Allègement
Matériaux hautes performances
Matériaux hybrides
Polyamide 6
Traction (mécanique)Index. décimale : 677.4 Textiles artificiels Résumé : With the development of innovative yarn structures and the required technologies, the ITM proved that highly oriented, homogenously blended card webs, slivers and high-performance hybrid yarns from recycled carbon fibers (rCF) can be produced for load-bearing composite components. In addition, the technical challenges and the technological lirnits of the production of high-performance yarns made from rCF could be shown. This provides the opportunity to transfer the ITM-developed process chain for hybrid yarn production at reproducible quality into industrial application. Furthermore, the research efforts allow a transfer of the findings in the next step for a requirement-adapted yarn production from pure rCF for thermosetting applications, and from other high-performance fiber materials. Note de contenu : - Developed process chain and products
- Characterization of developed hybrid yarns
- Production and characterization of UD composite samples made from hybrid yarn
- FIGURES : 1. Intermediated products of the process chain developed at the ITM - 2. Mechanical properties of high-performance hybrid yarns made of rCF depending on fiber volume content and yarn twist - 3. Microscopic image of the cross-section of a high-performance hybrid yarn with homogenously mixed reinforcement and matrix fibers - 4. Tensile strength of DU-composite test specimen with 50 % CF or rCF and PA 6.En ligne : https://drive.google.com/file/d/1JjoBjrsGK5dyksG6Fsa2cQmrVxnJ8HPP/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29041
in CHEMICAL FIBERS INTERNATIONAL > Vol. 67, N° 3 (09/2017) . - p. 153-155[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19090 - Périodique Bibliothèque principale Documentaires Disponible Innovative high-performance hybrid yarns made from recycled carbon fibers for lightweight structures / Anwar Abdkader in CHEMICAL FIBERS INTERNATIONAL, (10/2018)
[article]
Titre : Innovative high-performance hybrid yarns made from recycled carbon fibers for lightweight structures Type de document : texte imprimé Auteurs : Anwar Abdkader, Auteur ; Martin Hengstermann, Auteur ; Chokri Cherif, Auteur Année de publication : 2018 Article en page(s) : p. 52-54 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Caractérisation
Fibres de carbone
Fibres textiles -- Propriétés mécaniques
Matériaux -- Allègement
Matériaux hautes performances
Matériaux hybrides
Produits et matériaux recyclés
Résistance à la tractionIndex. décimale : 677.4 Textiles artificiels Résumé : With the development of innovative yarn structures and the required le nologies, the ITM proved that highly oriented, homogenously blended calu webs, slivers and high-performance hybrid yarns from recycled Carbon fibers (rCF) can be produced for load-bearing composite components. In addition, the technical challenges and the technological limits of the production of high-performance yarns made from rCF could be shown. This provides the opportunity to transfer the ITM-developed process chain for hybrid yarn production at reproducible quality into industrial application. Furthermore, the research efforts allow a transfer of the findings in the next step for a requirement-adapted yarn production from pure rCF for thermosetting applications, and from other high-performance fiber materials. Note de contenu : - Developed process chain and products
- Charactérisation of developed hybrid yarns
- Production and characterization of UD composite samples made from hybrid yarn
- Fig. 1 : Intermediated products of the process chain developed at the ITM
- Fig. 2 : Mechanical properties of high-performance hybrid yarns made of rCF depending on fiber volume content and yarn twist
- Fig. 3 : Microscopic image of the cross-section of a high-performance hybrid yarn with homogenously mixed reinforcement and matrix fibers
- Fig. 4 : Tensile strength of DU-composite test specimen with 50 vol. % CF or rCF and PA6En ligne : https://drive.google.com/file/d/1UcTaPvS9xU2MsDS4_j1Iao0udyptqZfc/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31251
in CHEMICAL FIBERS INTERNATIONAL > (10/2018) . - p. 52-54[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20259 - Périodique Bibliothèque principale Documentaires Disponible Innovative new hybrid metal composite four-disc milling cutter reduces machining times by 78% / Robin Poul in JEC COMPOSITES MAGAZINE, N° 139 (03-04/2021)
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Titre : Innovative new hybrid metal composite four-disc milling cutter reduces machining times by 78% Type de document : texte imprimé Auteurs : Robin Poul, Auteur ; Pavel Kozmin, Auteur Année de publication : 2021 Article en page(s) : p. 48-50 Langues : Anglais (eng) Catégories : Acier L'acier est un alliage métallique utilisé dans les domaines de la construction métallique et de la construction mécanique.
L'acier est constitué d'au moins deux éléments, le fer, très majoritaire, et le carbone, dans des proportions comprises entre 0,02 % et 2 % en masse1.
C'est essentiellement la teneur en carbone qui confère à l'alliage les propriétés du métal qu'on appelle "acier". Il existe d’autres métaux à base de fer qui ne sont pas des aciers comme les fontes et les ferronickels par exemple.
Composites à fibres de carbone
Coupe
Epoxydes
Fraise (outils)
Matériaux -- Allègement
Matériaux hybridesIndex. décimale : 668.4 Plastiques, vinyles Résumé : We has developed a new hybrid metal and carbon fibre (CF) composite milling cutting disk in collaboration with Hofmeister - Innovation. With an initial ambitious target of a 50% reduction in overall machining time, the final design exceeded the goal. The hybrid four-disc tool increased both the cutting speed and feed rate. The result is a high productivity hybrid milling tool that can operate 78% faster on the same milling centre than a standard steel two-disc cutter. Note de contenu :
- Exceeding expectations
- Lightweight composite hybrid design
- Superior tool performance
- Comparative testing
- Fig. 1 : Individual metal and hybrid carbon milling disc cutters manufactured by CompoTech and Hofmeister. The new hybrid tool design uses a lightweight epoxy composite with ultra-high modulus carbon fibres (CF) for the inner section of the individual milling discs ; the CF section is integrated with the steel hub and ring using a combination of an interlocking shape design and steel bolts
- Fig. 2 : New hybrid 4 disc milling cutter assembled. The entire four-disc hybrid milling cutter weighs only 16.25 kg, well within the maximum 25 kg. tool weight limit of the BT50 L 150 mm master mandrel on the Doosan Mecatec HM63H
- Fig. 3 : Illustration of the current standard 'all metal' two disc milling cutter
- Fig. 4 : The milling operation to accurately cut to tolerance the side and bottom faces of the forged chain connector link was-completed in just 10 seconds using the new four-disc hybrid milling cutter, 35 seconds faster than the two-disc metal tool
- Table 1 : Comparative parameters data - Current 2-disc metal milling tool v's 4-disc hybrid toolPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35577
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Code-barres Cote Support Localisation Section Disponibilité 22574 - Périodique Bibliothèque principale Documentaires Disponible Integral composite body structure for a light urban vehicle / Charles Leroux in JEC COMPOSITES MAGAZINE, N° 82 (07/2013)
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Titre : Integral composite body structure for a light urban vehicle Type de document : texte imprimé Auteurs : Charles Leroux, Auteur Année de publication : 2013 Article en page(s) : p. 51-53 Langues : Anglais (eng) Catégories : Automobiles -- Carrosseries
Automobiles -- Matériaux
Composites -- Thermoformage
Matériaux -- Allègement
Matières plastiques dans les automobiles
Moulage par transfert de résine sous vide
Polyméthacrylate de méthyleLe poly(méthacrylate de méthyle) (souvent abrégé en PMMA, de l'anglais Poly(methyl methacrylate)) est un polymère thermoplastique transparent obtenu par polyaddition dont le monomère est le méthacrylate de méthyle (MMA). Ce polymère est plus connu sous son premier nom commercial de Plexiglas (nom déposé), même si le leader global du PMMA est Altuglas International9 du groupe Arkema, sous le nom commercial Altuglas. Il est également vendu sous les noms commerciaux Lucite, Crystalite, Perspex ou Nudec.
Terpolymère acrylonitrile butadiène styrèneIndex. décimale : 668.4 Plastiques, vinyles Résumé : Due to CAFE regulations, the automotive industry is now compelled to investigate all technology levers that could help reduce the carbon footprint of vehicles by 2020. These levers include power train improvements, dimensional and aerodynamic optimization, friction reduction and weight savings. All car makers need to implement the virtuous cycle of a weight-saving strategy as a 100-kg weight reduction can induce a fuel saving of 0.5 litres per km. Structural composite parts and subsystems offer a real opportunity to succeed. En ligne : https://drive.google.com/file/d/1C2aBX_27txY1ZecB0VvEHOZ3vrRMVrzV/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21048
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Code-barres Cote Support Localisation Section Disponibilité 15401 - Périodique Bibliothèque principale Documentaires Disponible Integrated lightweight rail vehicle composites structures meet high fire requirements in JEC COMPOSITES MAGAZINE, N° 152 (09-10/2023)
[article]
Titre : Integrated lightweight rail vehicle composites structures meet high fire requirements Type de document : texte imprimé Année de publication : 2023 Article en page(s) : p. 45-47 Langues : Anglais (eng) Catégories : Composites à fibres de carbone
Incendies -- Prévention
Industrie ferroviaire -- Matériaux
Matériaux -- Allègement
Matières plastiques dans les trainsIndex. décimale : 668.4 Plastiques, vinyles Résumé : Four specialised companies, investigated different competitive materials and processes to develop a lightweight car body structure meeting the EN-45545 European railway standard for fire safety. Note de contenu : - Lightening strategy
- Manufacturing process : fine-tuning through a scale demonstrator
- Manfuacturijng process : scale-up and real testing validation
- In summary, advantages offered by this technology
- Fig. 1 : Talgo's 3D CAD of a metal train body structure and Tecnalia's 3D CAD of a simplified one-shot composite structure
- Fig. 2 : Meshing and FEM analysis
- Fig. 3 : Tecnalia's fire-smoke-toxicity tests
- Fig. 4 : Conceptual integration structure and bottom face of the scaled demonstrator of the floor coupler area
- Fig. 5 : Assembly and inner view of the CFRP car body
- Fig. 6 : Full-scale demonstrator of a complete section
- Fig. 7 : Demonstrator exhibited at the JEC World Mobility Planet 2023En ligne : https://drive.google.com/file/d/1xZByBLMu40ZPdv3KR0N1B_qsXEpz_y0u/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40573
in JEC COMPOSITES MAGAZINE > N° 152 (09-10/2023) . - p. 45-47[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 24157 - Périodique Bibliothèque principale Documentaires Disponible Integrating design and costing / Katharina Bleck in JEC COMPOSITES MAGAZINE, N° 113 (06/2017)
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